The much anticipated fight between Conor McGregor and Floyd Mayweather is on! August 26th in Vegas and it will be 12 rounds of boxing. Maine's Dana White, who is UFC president talks about the deal that could be worth a half billion dollars.

The fight weight is 154 pounds and they will use 10-ounce gloves.

McGregor is 21-3 in the UFC. Mayweather is 49-0 in the boxing ring...